Chapter 6: How Brains Decide 119 Big Decisions 119 Inference to the Best Plan 121 Decisions in the Brain 123 Changing Goals 126 How to Make Bad Decisions 133 Living without Free Will 137 Conclusion 140

Chapter 7: Why Life Is Worth Living 142 The Meaning of Life 142 Nihilism 143 Happiness 146 Goals and Meaning 149 Love 152 Work 158 Play 161 Conclusion 165

Chapter 10. Making Sense of It All 209 Connections Made 209 Wisdom Gained 213 What Kind of Government Should Countries Have? 215 How Can Creative Change Be Produced? 217 What Is Mathematical Knowledge? 221 Why Is There Something and Not Nothing? 224 The Future of Wisdom 226